A Polygon Has 54 Diagonals How Many Sides
N n 1 2 n. Diag nn - 32. Prove Number Of Diagonals Of A Polygon Youtube Next multiply that number by the number of sides. . Only positive solution for n will be n 20. So the polygon has 12 sides and it is a dodecagon. So nn-3 2 170. In fact it is the polygon with the least number of sides. Using this formula we are going to relate that is to equate the number of diagonals given and the formula by equating we can solve and. Plugging in the known information we know that diag 54. Lets try a polygon with 10 sides and see what we get. So total diagonals will be nn-3 2. The formula for the number of diagonals that can be formed in a polygon with n sides is. By using the formula for the number of diagonals of a polygon with n sides you can determine how many sides a polygon has if you know the number of diagonals it has. How many diagonals does a 20-sides polygon have. So your polygon has 20 sid...